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Order Now in time for this summer's cooling
band New Blowers
PRE-WAR QUALITY
Heavy Gauge Steel
AT 1942 CEILING PRICES ... A limited quantity of brand new blowers are now available to replace your worn-out, obsolete or broken-down fans or blowers. Pre-war heavy gauge steel construction. Complete with drives. Will pleasantly
cool and ventilate the theatre with 100% fresh air every 2'/2 to 3 minutes when proper size is installed.
MAT TYPE AIR WASHERS, also available from $115.00
To avoid unnecessary delay, mark your order "AA5 MRO CMP 5" and send It NOW. Theatres may Issue this priority for maintenance, repair or operation. 50% deposit required. Specify freight or express.
DIRECT FROM THE FACTORY
6 to 8 Weeks Delivery
C.F.M. Output
With Rebuilt •Motor
Appro*. Shpg. Weight
5,500.. .
.$106.50.
. . .300
8,500.. .
. 143.50.
.. .375
1 1,000.. .
. 190.75.
.. .425
13,500.. .
. 230.00.
.. .500
22,500.. .
. 290.00.
...575
27,500.. .
. 342.00.
.. .700
Standard discharge is bottom horizontal
*AII motors In perfect working condition, guaranteed I year.
// no motor wanted, the ceiling price will be allowed.
Write for Special Air Conditioning Folder
S. 0. S. CINEMA SUPPLY CORP.
449 WEST 42nd STREET
LOr.gacre 3-4040
NEW YORK 18. N. Y.
RICHARDSON'S
BLUEBOOKo/ PROJECTION
SEVENTH EDITION
In the Seventh Edition, this famous standard textbook on motion picture projection and sound reproduction brings to all persons concerned with the screening of 35-mm. film, up-to-the-minute guidance. The Seventh Edition is new in its method of presenting the subject, new in organization of material, new in much of the opening data. Additionally, the Seventh Edition contains four chapters on Theatre Television, prepared for the practical instruction of motion picture projectionists. The chapters ©n sound now include one devoted to control-track and stereophonic reproduction. And supplementing the regular text are 20 charts for handy reference in locating and correcting sound system defects. Each chapter is preceded by a list of study questions with cross-reference to the text so that the answers may be readily found. The text is thoroughly indexed for easy access to all instructions.
$7.25
POSTPAID
QUIGLEY BOOKSHOP, 1270 Sixth Avenue, New York 20, N. Y.
some adjustment of the floor pitches, or chang in the character of the floor slope, is addi tionally necessary.
In planning for seating, the theatre man agement should make a survey of condition to see if the plan could be improved, how i might be improved, and what changes wouli be required to improve it. Following are sug gestions for such a survey:
IMAGE SIZE AND LOCATION
Determine if the screen can be moved fai ther away from the first row of seats neares the screen. Check the dimensions of th image and consider reducing the size if th width is greater than a dimension obtaine by dividing the total viewing distance (scree to last row of seats) by 5.4. Excessive ima(, size decreases the value of seats nearest th\ picture and forces the bottom of the pictum lower than it otherwise would have to be.
Consider having the bottom of the pictuii image as much as 6 feet above the floor lev! under the first row of seats nearest the screei (The picture should not be raised if the tcj of the image will be obscured by the overhari of a balcony for people seated in the rear the main floor.)
The existing floor slope should next checked to determine whether, by the intr duction of staggered seating, a sufficient clear view of the image can be provided frc practically all viewing points. It is importa! to note here that an effective staggered se; ing arrangement is not obtained by men placing the arm block of a chair on a line w the center of the back of the chair ahe; This procedure will cause more obstruction vision from many seating locations than ordinary seating arrangement.
PLANNING FOR STAGGER
This is true because of the fact that e; seating location subtends a different angle the screen proper. Each stagger plan the fore needs to be worked out so as to prov proper clearance for each seat. Adjustme in chairs should be specified in the plan so to effect the clearances and also an even ai line.
The use of extra-wide chairs at the ei of alternate rows has been resorted to qt frequently as a means of staggering seati It is an expedient rather than a precise meth The odd chairs have no real utility other tip to effect stagger of the regular chairs, they of course impart a queer appearance^ the seating assembly. But aside from tj the method is deficient in that it does not 1 1 variations in visual angles into considerati You get the general effect of a stagger pl; but not its complete advantages.
FLOOR SLOPE CHANCES
In some theatres it may be that the us< a properly designed stagger plan, and ele ing the screen, will not produce the des clearances. It will be found that the h( of people seated two rows ahead will 11 obscure the view of some bottom portion: if ! the screen image. Although the use of s g i gered seating in these cases will overcome ke more important obstruction created by tie heads immediately in front, it is advisabl [to I apply further remedies to correct the cond Ian fully.
In these theatres the floor slope is inefficient in amount, or is of a type unsuitejto
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BETTER THEATRES. APRIL 7. 945